Comment 1 for bug 1511421

Thank you for taking the time to report this bug and helping to make Ubuntu better.

Based on the error message, have you done any changes to the password for the keystore or this a first install?

Also, could you please execute the following command, as it will automatically gather debugging information, in a terminal:
apport-collect 1511421
When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.